Source

linux-scalability-benchmarks / libowfat / io / io_tryreadtimeout.3

The default branch has multiple heads

.TH io_tryreadtimeout 3
.SH NAME
io_tryreadtimeout \- read from a descriptor without blocking
.SH SYNTAX
.B #include <io.h>

int \fBio_tryreadtimeout\fP(int64 fd,char* buf,int64 len);
.SH DESCRIPTION
io_tryreadtimeout is identical to io_tryread, with the following
exception: if

.RS 0
.IP \[bu] 3
io_tryread returns -1 (the descriptor is not ready for reading), and
.IP \[bu]
the descriptor has a timeout, and
.IP \[bu]
the read attempt was after the descriptor's timeout,
.RE

then io_tryreadtimeout instead returns -2, with errno set to ETIMEDOUT.
.SH "SEE ALSO"
io_nonblock(3), io_waitread(3), io_tryread(3)